What is a progression run?

Abakan

I've just started an intermediate half marathon training plan and the plan calls for progression runs every other week. Can anyone tell me what a progression run is, I've never come across the term before.
Thanks in advance,
Linda.

5512bf

There are several types of progression runs, i typically do the 1st & 2nd of these 3 listed.

https://www.mcmillanrunning.com/articlePages/article/6

SonicDeathMonkey80

Maybe like a tempo, but not really. Start out at your easy pace and every mile grind it down a little until you hit your aerobic threshold pace, keep it there for a little bit, then start your cool down. I don't really classify progression runs as speedwork as much as I would an interval or tempo workout. Progressions are fun and break up the monotony of training.

Abakan

Thanks guy's, the link explained it all nicely. I'm looking forward to giving it a go tomorrow.